CSI: NY (2004)

S02E22 Stealing Home

Title: Stealing Home Plot: When Mac and Stella are approached by two women asserting they were married to a murder victim, they find themselves caught off guard by the unexpected nature of the relationships. Both women reveal they were part of a triad with the deceased. Meanwhile, Danny and Lindsay delve into the mysterious death of a young woman discovered submerged near a dock, entangled in seaweed while donned in a mermaid costume.